1. Zuckerberg was born in 1984 in White Plains, New York. He is the son of dentist Edward Zuckerberg and psychiatrist Karen Kempner.
2. Zuckerberg and his three sisters, Randi, Donna, and Arielle were brought up in Dobbs Ferry, New York, a small Westchester County village.
3. At Ardsley High School, Mark Zuckerberg was excelled in classes. He was transferred to Phillips Exeter Academy in New Hampshire in his junior year, where he won prizes in science (Maths, Astronomy, and Physics) and classical studies.
4. Zuckerberg began using computers and writing software in middle school. His father taught him Atari BASIC Programming in the 1990s, and later hired software developer David Newman to tutor him privately.
5. Zuckerberg took a graduate course in the subject at Mercy College near his home while still in high school.
6. Mark Zuckerberg enjoyed developing computer programs, especially communication tools and games. He built a software program he called "ZuckNet" that allowed all the computers between the house and dental office to communicate with each other. It is considered a "primitive" version of AOL's Instant Messenger, which came out the following year.
7. Zuckerberg himself recalls this period: "I had a bunch of friends who were artists. They'd come over, draw stuff, and I'd build a game out of it."
8. Mark Zuckerberg later became captain of his prep school fencing team and earned a classics diploma.
9. During Zuckerberg's high school years, under the company name Intelligent Media Group, he built a music player called the Synapse Media Player that used machine learning to learn the user's listening habits, which was posted to Slashdot and received a rating of 3 out of 5 from PC Magazine.
10 By the time he began classes at Harvard, Zuckerberg had already achieved a "reputation as a programmer" but he still studied psychology and computer science in University.
11. According to Zuckerberg's roommate at the time, Arie Hasit, "he built the site for fun". Hasit explains:
12. "We had books called Face Books, which included the names and pictures of everyone who lived in the student dorms. At first, he built a site and placed two pictures, or pictures of two males and two females. Visitors to the site had to choose who was "hotter" and according to the votes there would be a ranking".
13. The site went up over a weekend; but by Monday morning, the college shut it down because its popularity had overwhelmed one of Harvard's network switches and prevented students from accessing the Internet. (within this bad environment prevention, Mark Zuckerberg still moved on). In addition, many students complained that their photos were being used without permission. Zuckerberg apologized publicly, and the student paper ran articles stating that his site was "completely improper."
14. In January 2004, Mark Zuckerberg began writing code for a new website, which on February 4, 2004, Zuckerberg launched "Thefacebook", originally located at thefacebook.com, which is now redirect to "www.facebook.com".
15. Six days after the site launched, three Harvard seniors, Cameron Winklevoss, Tyler Winklevoss, and Divya Narendra, accused Zuckerberg of intentionally misleading them into believing he would help them build a social network called HarvardConnection.com, while he was instead using their ideas to build a competing product. The three complained to the Harvard Crimson and the newspaper began an investigation in response.
16. Before the official launch of the Facebook social media platform, the three filed a lawsuit against Zuckerberg that resulted in a settlement. The agreed settlement was for 1.2 million Facebook shares that were worth US$300 million at Facebook's IPO.
17. Zuckerberg dropped out of Harvard University in his sophomore year to complete his project. In January 2014, Zuckerberg recalled.
18. On December 1, 2015, Zuckerberg and Chan announced the birth of their daughter Max, and in an open letter to Max, they pledged to donate 99% of their Facebook shares, then valued at $45 billion, to the Chan Zuckerberg Initiative, their new charitable foundation with focuses on health and education. The donation will not be given to charity immediately, but over the course of their lives.